Automobile-jack.



PATENTED MAY 5, 1903.

GWW BARTLETT. AUTOMOBILE JACK.

APYLIOATION FILED SEPT. 18, 1902.

2 SHEETBSHEET 1.

N0 MODEL.

I I T vrrcn: co, rum-ammo, WASHINGTOA. o. r.

No. 727,264. v PATENTED-MAY5,1903.

1 G. W. BARTLETT.

AUTOMOBILE-JACK.

APPLIUATION FILED SEPT. 18, 1902.

N0 MODEL. 2 s'nmwsnnn'r 2.

Witnesses at j? l atentedlvfay 5, 190a.

rrrcs.

TENT GEORGE W'. BARTLETT, OF SEDALIA, MISSOURI, ASSIGNOR OF ONE-HALF TOJAMES T. MONTGOMERY, OF SEDALIA, MISSOURI;

AUTOMOBILE-JACK.-

SPEGIFICATION forming part of Letters Patent N 0. 727,264, dated May 5,19 03; Application filed September 18, 1902. Serial No, 123,934. (Nomodel.)

To all whom it may concern:

Be it known that I, GEORGE W. BARTLETT, a citizen of the United States,residing at Sedalia, in the county of Pettisand State of 5 Missouri,have invented certain new and useful Improvementsin Automobile-Jacks andI do hereby declare the following to be a'full,

clear, and exact description of the invention, such as will enableothers skilled in the art, to

With this and further objects in view the invention consists of alifting-frame, means for raising the same, and'locking means forretaining the same in'itslifted position.

A further embodiment of the present invention includes a suitable base,standards pivoted thereto, a liftingframe pivotally 2 5 mounted on saidstandards, means for swinging said standards upon their pivots forraising said frame, and means carried by'said frame and engaging one ofsaid standards for retaining the same in its raised condition.

The invention consists in certain other novel constructions,combinations, and arrangements of parts, as will be hereinafter fullydescribed and claimed.

In the accompanying draw1ngs, Fig'ure 1 represents a perspective view ofa lifting;

jack embodying the features of the present invention. elevation of thesame, a vehicle being indicated'thereon in dotted lines. Fig. 3 repre osents a longitudinal horizontal section. taken on line 3 3 of Fig. 2,parts being omitted. Fig. 4 represents fragmentary detail views of thelocking arms or levers in their various positions. Fig. 5 represents anenlarged de- 5 tail perspective view of a portion of the lifting-leverand the traveling sleeve inclosing the same. Fig. 6 represents anenlarged detail fragmentary perspective View of one of the axle-engagingpads.

It is well known that the weight of an auof a vehicle. ably 'made up ofa suitable strip of metal 5 Fig. 2 represents a view in side tomobile orother vehicle when sustained by the tires thereof is more or lessinjurious to such tires and shortens the lives thereof, and in order toobviate this unnecessary Wear I {contemplate employing a jack whichshall 55,

be capable of' lifting an automobilev or other vehicle, so that itsweight will be sustained by its axles and the tires of the wheelscarried thereby will be free. In the embodiment of such a jack disclosedin the accom- 6o panying drawings I contemplate employing a suitablebase 1, provided with a plurality of pivotally-mounted standards 2 2,pivotally supporting at their upper ends a frame 3, which in turn isprovided with axle-engaging 6 pads 4: 4, positioned for sustaining theaxles Each of said pads is preferclamped about itsrespective beam of theframe 3 and provided with any suitable 7o cushioning-strip 6 forcontacting with the axle being supported.

The frame 3 is made up, preferably, of longitudinal beams 3 andtransverse rods 3", the said "rods pivotally connecting said standards 2with said beams, whereby the said frame may be swung downwardly andoutwardly until it is brought very nearly into contact with the base 1.

An operating-lever 7 is pivoted, as at 8, preferably centrally of thebase 1, and is provided at its outer end with any suitable handle 9 forfacilitating operation. A traveling sleeve 10 surrounds the lever 7 andis provided at its front end with an antifrictionroller ll, engaging theunder surface of the lever 7, and a cam 12, engaging the upper surfacethereof opposite said roller. Each end of the sleeve 10 pivotally,engages liftingbeam 13, which beam is bifurcated at its rear end, andthe arms 14 14 of said bifurcation pivotally engage the opposite ends ofthe rear rod of the framework 3, so that raising and lowering the lever7 will correspondingly raise and lower the said frame 3, the cam- 12 5being employed to lock the sleeve 10 against longitudinal movement atany given point, whereby the said frame 3 may be raised to a desiredheight by the lifting of lever 7 and sustained at such height bythrowing the cam Ico 12 to its locking position, as indicated in Fig. 5.

Each of the longitudinal beams 3 of the frame 3 is provided with a block15 near its rear end, each block being formed with longit ndinalslots 161b, through which are passed set-screws 17 17, wherebyeach of the saidblocks may be adjusted longitudinally of the framework and is adapted tohave its end engage the edge of its respective standard 2 for forming anabutment therefor.

Pivoted, as at 18, to one of the longitudinal beams of the frame 3 isalocking-lever 19 and an arm 20, the said lever being formed with anengagingshoulder 21, adapted in operation to engage a stud orlaterally-projecting lug 22, extending from one of the standards 2. Thefree ends of the said lever and arm are connected by a handle 23, whichis adapted to be swung bodily end for end in one direction for bringingthe arm 20 into engagement with lug 22 and similarly moved in the otherdirection for bringing the lever 19 into engagement with said lug.

In operation the jack is brought to the position indicated in dottedlines in Fig. 2 with the frame 3 as near the base 1 as is necessary forpassing the jack beneath the vehicle to be lifted, and the jack is thenpositioned beneath such vehicle with the pads 4 in the vertical planesof the axles of said vehicle, the cam 12 being in its unlocked conditionand the lever 19 contacting with ing 22 the handle 9 is grasped and' thelever 7 lifted until the pads 4 contact with the axles of the vehicleand raise the vehicle, the shoulder 21 then engaging the lug 22, wherebythe frame 3 is locked in its (raised condition. When it is desired toremove the vehicle, the locking-cam 12 is thrown into locking positionand the position of the arm 20 and the lever 19 is reversed, said armbeing brought into contact with the lug 22, whereby the frame 3 is freeto move downwardly except for the resistance of the locking-cam 12. Thelockingcam is released sufficiently to permit the vehicle to lowergradually and its wheels contact with the ground.

Of course it will be understood that where mention is made of placingthe jack beneath the vehicle it might at times be found more convenientto run the vehicle over the jack, and when removing the vehicle it wouldof course be at the discretion of the operator whether he would removethe jack from beneath the vehicle or simply lower the same suificientlyto permit the vehicle to be moved away from the jack.

Although I have set forth in detail one specific embodiment of thepresent invention,

yet it will be understood that I do not desire to limit myself to theminor features set forth, but shall at all times feel at liberty todeviate therefrom within the spirit and scope of the invention 1 Havingthus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

1. A vehicle-jack comprising a suitable base,pivoted standards, a framecarried thereby, an arm and a locking-lever pivoted to said frame, anoperating-handle engaging the free end of said arm and lever and adaptedwhen rotated to raise one of the elements engaged thereby and lower theother, a shoulder on said lever, means for engaging said shoulder forlocking said frame in a raised position, and means for raising theframe, substantially as described.

2. In a vehicle-jack, the combination with pivotally-mounted standardsand a frame carried thereby, of an arm and a locking-lever carried bysaid frame, locking means, means engaging the said arm and lever foralternately throwing said lever into and out of looking position,andmeans for raisin gsaid frame, substantially as described.

3. In a mechanism of the class described, the combination with pivotally--mounted standards and a frame carried thereby, of a locking-1n gextending from one of said standards, a locking-lever pivoted to saidframe and designed to engage said lug, and means adapted to be broughtinto engagement with said ing for retaining said lever out of engagementtherewith, substantially as described.

4. A vehicle-jack, comprising a suitable base, standards pivotedthereto, aframe pivotally carried by said standards, a lockingleverformed with a shoulder, and pivoted to said frame, an arm also pivotedto said frame, a lug extending from one of said standards, means foralternately throwing said arm and lever into contact with said lug, andmeans for raising said frame, substantially as described.

5. A vehicle-jack, comprising a suitable base, standards pivotedthereto, a frame pivotally carried by the upper ends of said standards,a lug extending from one of said standards, an arm and a locking-leverpivoted at the same point to said frame, an operatinghandle engaging thefree ends'of said arm and lever for retaining the same out of the sameplane and adapted when rotated to alternately bring said lever and arminto contact with said lug, a shoulder on said lever adapted to engagesaid lug, and means for raising said frame, substantially as described.

6. A vehiclejack, comprising a suitable base, a supporting-frame carriedabove the same, a beam for lifting said frame, an operating-lever, atraveling sleeve surrounding the same and pivotally engaging said beam,and means for locking said sleeve against movement, substantially asdescribed.

7. A vehiclejack comprising a suitable base, a supporting-frame abovethe same, a beam for raising said frame, means for looking said frame ina raised position, a lever for operating said beam, a sleeve surroundingsaid lever and pivotally engaging said beam,

and a cam carried by said sleeve and adapted to be brought into lockingengagement with said lever, substantially as described.

8. In a mechanism of the class described,

' 5 the combination with pivotallymounted and means for throwing sameinto and out of engagement therewith, substantially as described.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

GEORGE w. BARTLETT.

Witnesses:

J AS. T. MONTGOMERY, CHARLES E. YEATER.

